<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>练习</title>
		<style>
			div{
				width: 400px;
				height: 400px;
				margin: 100px auto;
				background:url(7f9d0bf3jw1ezd6lohdugj211i1e01kz.jpg) no-repeat -140px -140px; 	    
				border-radius: 50%;
				/*transition: all 16s linear;*/
				animation: move 20s linear infinite;
			}
			div:hover{
				transform: rotate(360deg);
			}
			@keyframes move{
				0%{transform: rotate(0deg);}
				100%{transform: rotate(360deg);}
			}
		</style>
	</head>
	<body>
		<div></div>
	</body>
</html>
